Lady Gaga and Kendrick Lamar are taking their friendship one step further. The odd couple have collaborated on a new song for Kendrick’s upcoming debut.

The pop superstar took to Twitter to reveal the title of the track and release date. “I am so excited to announce that a record I’ve been working on has now become a collaboration with @KendrickLamar for HIS ALBUM,” she wrote. “@kendricklamar and I are dropping the record SEPT 6. Its called ‘PARTYNAUSEOUS.'”

She previously showed up to support her friend at the Pitchfork Festival in Chicago last month. “Can your new album come out now so i can go out to clubs and dance again?” she asked the Compton MC.

Their relationship didn’t blossom overnight. “That’s a real good friend… a real good friend,” Kendrick told The Source.

In addition to the Gaga collaboration, Kendrick’s highly-anticipated album good kid m.A.A.d city will feature the singles “Swimming Pools (Drank)” and the Dr. Dre-assisted “The Recipe” when it arrives on October 2.